Vascular plug delivery system
First Claim
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1. A device for in vivo delivery of a vascular plug to a site of a puncture in a blood vessel in which a guidewire has been inserted, comprising:
- a cannula capable of passing over a guidewire and having sufficient length and dimension to enter a blood vessel puncture;
a vascular plug disposed in a delivery position over the outside diameter of said cannula; and
means carried by the cannula for retaining said plug at a vessel puncture site during withdrawal of said cannula from the site of the puncture.
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Abstract
A vascular plug delivery system for in vivo delivery of a vascular plug to the site of a puncture in a blood vessel. The device utilizes flashback to ensure that the plug is properly positioned adjacent the puncture prior to delivery of such plug, thereby ensuring complete hemostasis of the puncture.
444 Citations
31 Claims
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1. A device for in vivo delivery of a vascular plug to a site of a puncture in a blood vessel in which a guidewire has been inserted, comprising:
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a cannula capable of passing over a guidewire and having sufficient length and dimension to enter a blood vessel puncture; a vascular plug disposed in a delivery position over the outside diameter of said cannula; and means carried by the cannula for retaining said plug at a vessel puncture site during withdrawal of said cannula from the site of the puncture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device for in vivo delivery of a vascular plug to a site of a puncture in a blood vessel in which a guidewire has been inserted, comprising:
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a cannula capable of passing over a guidewire and having sufficient length and dimension to enter a blood vessel puncture; a vascular plug disposed in a delivery position over the outside diameter of said cannula; a housing adapted to slide over said cannula and having sufficient space therein to accommodate said vascular plug; and means carried by the cannula for retaining said plug at a vessel puncture site during withdrawal of said housing and said cannula from said site. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for in vivo delivery of a vascular plug to a site of a puncture in a blood vessel comprising:
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advancing a cannula having a plug disposed over its outside diameter to a vessel puncture site over a guidewire previously positioned in said vessel until said cannula enters said vessel and a flashback of blood is observed whereby it may be determined that said plug is positioned proximal said vessel puncture site; depositing said plug in a position proximal said vessel puncture site; and withdrawing said guidewire and said cannula from said vessel puncture site. - View Dependent Claims (28, 29, 30, 31)
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Specification